<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- <script src="../js/vue.min.js"></script> -->
    <script src="../js/vue.js"></script>
</head>
<body>
    <div id="root">
        <h1>今天天气非常{{info}}</h1>
        <button @click="changeInfo">切换天气</button>
    </div>
    <script>
        new Vue({
            el:'#root',
            data:{
                ishot:true,
            },
            computed:{
                info(){
                    return this.ishot ? '热' : '冷';
                }
            },
            methods: {
                changeInfo(){
                    this.ishot=!this.ishot;
                }
            },
        })
    </script>
</body>
</html>